# git rev-parse -q --verify 3719876809e745b9db5293d418600c194bbf5c23^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
error: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 3719876809e745b9db5293d418600c194bbf5c23^{commit}
3719876809e745b9db5293d418600c194bbf5c23
# git checkout -q -f -B kisskb 3719876809e745b9db5293d418600c194bbf5c23
# git clean -qxdf
# < git log -1
# commit 3719876809e745b9db5293d418600c194bbf5c23
# Author: Steven Rostedt (VMware) <rostedt@goodmis.org>
# Date:   Mon Jan 14 12:25:40 2019 -0500
# 
#     sbitmap: Protect swap_lock from softirqs
#     
#     The swap_lock used by sbitmap has a chain with locks taken from softirq,
#     but the swap_lock is not protected from being preempted by softirqs.
#     
#     A chain exists of:
#     
#      sbq->ws[i].wait -> dispatch_wait_lock -> swap_lock
#     
#     Where the sbq->ws[i].wait lock can be taken from softirq context, which
#     means all locks below it in the chain must also be protected from
#     softirqs.
#     
#     Reported-by: Clark Williams <williams@redhat.com>
#     Fixes: 58ab5e32e6fd ("sbitmap: silence bogus lockdep IRQ warning")
#     Fixes: ea86ea2cdced ("sbitmap: amortize cost of clearing bits")
#     Cc: Jens Axboe <axboe@kernel.dk>
#     Cc: Ming Lei <ming.lei@redhat.com>
#     Cc: Guenter Roeck <linux@roeck-us.net>
#     Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 3719876809e745b9db5293d418600c194bbf5c23
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  randconfig
KCONFIG_SEED=0x41D5BC5E
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_CPU_BIG_ENDIAN=y
# Added to kconfig CONFIG_PPC64=y
# Added to kconfig CONFIG_PPC_DISABLE_WERROR=y
# Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y
# Added to kconfig 
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: 4 bad relocations
c00000000001955e R_PPC64_ADDR16_HIGHEST  .head.text+0x0000000000019578
c000000000019562 R_PPC64_ADDR16_HIGHER  .head.text+0x0000000000019578
c00000000001956a R_PPC64_ADDR16_HIGH  .head.text+0x0000000000019578
c00000000001956e R_PPC64_ADDR16_LO  .head.text+0x0000000000019578
INFO: Uncompressed kernel (size 0x1db7298) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1e00000)
Image Name:   Linux-5.0.0-rc2-g3719876809e7
Created:      Tue Jan 15 08:35:24 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    10395817 Bytes = 10152.17 KiB = 9.91 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc5
# Build took: 0:03:19.166774